An anodic stripping voltammetry (ASV) sensing platform which provides real time determination of zincate diffusion through membrane separators in alkaline electrolyte with total experimental times on the order of hours is presented. Advanced separators are essential for future rechargeable alkaline zinc batteries. In order to be screened, these membranes need to be evaluated for their zincate blocking performance. Current complexometric titration and elemental analysis methods for zincate membrane diffusion characterization can take days to weeks to obtain results as well as include large sample dilution factors and require additional sample processing. The anodic stripping voltammetry (ASV) sensing platform presented here provides real time determination of zincate diffusion in alkaline electrolyte with total experimental times on the order of hours. This method eliminates the need for sample dilution and post experiment sample processing. This technique significantly increases the throughput for the screening of advanced alkaline battery separators resulting in rapid turnaround times in the analysis of these vital membranes. To evaluate the utility of this method, zincate diffusion through commercial Celgard 3501 and Cellophane 350P00 was monitored using both ASV and inductively coupled plasma-mass spectrometry (ICP-MS) methods. The obtained zincate diffusion coefficients for both techniques were found to compare favorably.

中文翻译：

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用于实时测定高 pH 值下锌膜扩散系数的溶出伏安法：快速筛选碱性电池隔膜

提出了阳极溶出伏安法 (ASV) 传感平台，该平台可实时测定碱性电解质中通过膜分离器的锌酸盐扩散，总实验时间为数小时。先进的隔膜对于未来的可充电碱性锌电池至关重要。为了进行筛选，需要评估这些膜的锌酸盐阻断性能。当前用于锌酸盐膜扩散表征的络合滴定和元素分析方法可能需要数天到数周才能获得结果，并且包括大量样品稀释因子并需要额外的样品处理。此处介绍的阳极溶出伏安法 (ASV) 传感平台提供了碱性电解质中锌酸盐扩散的实时测定，总实验时间为数小时。该方法无需样品稀释和实验后样品处理。该技术显着提高了筛选高级碱性电池隔膜的吞吐量，从而缩短了分析这些重要膜的周转时间。为了评估该方法的效用，使用 ASV 和电感耦合等离子体质谱 (ICP-MS) 方法监测锌酸盐通过商业 Celgard 3501 和 Cellophane 350P00 的扩散。发现两种技术获得的锌酸盐扩散系数比较有利。该方法无需样品稀释和实验后样品处理。该技术显着提高了筛选高级碱性电池隔膜的吞吐量，从而缩短了分析这些重要膜的周转时间。为了评估该方法的效用，使用 ASV 和电感耦合等离子体质谱 (ICP-MS) 方法监测锌酸盐通过商业 Celgard 3501 和 Cellophane 350P00 的扩散。发现两种技术获得的锌酸盐扩散系数比较有利。该方法无需样品稀释和实验后样品处理。该技术显着提高了筛选高级碱性电池隔膜的吞吐量，从而缩短了分析这些重要膜的周转时间。为了评估该方法的效用，使用 ASV 和电感耦合等离子体质谱 (ICP-MS) 方法监测锌酸盐通过商业 Celgard 3501 和 Cellophane 350P00 的扩散。发现两种技术获得的锌酸盐扩散系数比较有利。使用 ASV 和电感耦合等离子体质谱 (ICP-MS) 方法监测锌酸盐通过商用 Celgard 3501 和玻璃纸 350P00 的扩散。发现两种技术获得的锌酸盐扩散系数比较有利。使用 ASV 和电感耦合等离子体质谱 (ICP-MS) 方法监测锌酸盐通过商用 Celgard 3501 和玻璃纸 350P00 的扩散。发现两种技术获得的锌酸盐扩散系数比较有利。